"Be dying to" is an idiomatic expression that implies a strong desire or eagerness for something. However, there are various synonyms that can be used to convey the same meaning, such as "craving," "longing," "yearning," "itching," "pining," "hankering," "coveting," "fancying," "itching," and "desiring intensely." Each of these phrases reflects a sense of anticipation and enthusiasm for a particular outcome or experience. Choosing the right synonym depends on the context and the intensity of the feeling being expressed. Nonetheless, these alternatives provide an effective way to add variety to your writing, making it more expressive and engaging.